Vermont Castings DV360 Operations Instructions download pdf (Page 19)

DV360/580 Series Direct Vent Gas Fireplace

20010667

Vertical Sidewall Installation

Twist Lock Pipe

Step 1

Locate vent opening on the wall. It may be necessary

to ﬁrst position the ﬁreplace and measure to obtain hole

location. Depending on whether the wall is combustible

or noncombustible, cut opening to size. (Fig. 32) (For

combustible walls ﬁrst frame in opening.)

NOTE: When using ﬂex vent, the opening will have to

be measured according to the 1/2” (13 mm) rise in 12”

(305 mm) vent run.

Combustible Walls: Cut a 9³⁄₈”H x 9³⁄₈”W (240 mm x

240 mm) hole through the exterior wall and frame as

shown. (Fig. 32)

Noncombustible Walls: Hole opening must be 7¹⁄₂”

(191mm) in diameter.

VO584-100

Vent Opening

2/99 djt

Vent Opening for Combustible Walls

9³⁄₈”

(240 mm)

9³⁄₈”

(240 mm)

Fireplace Hearth

Framing Detail

Opening for Noncombustible Wall

7¹⁄₂”

(190 mm)

Fireplace Hearth

VO584-100

Fig. 32 Locate vent opening on wall.

ZCS101 

Zero Clearance Sleeve

3/11/99 djt

Adjustable Zero

Clearance Sleeve

Max. Length

12” (305 mm)

#8 Screws (2)

Firestop

#8 Screws

(2)

Adjustable Zero

Clearance Sleeve

#8 Screws

(2)

ZCS101

Fig. 33 Adjustable zero clearance sleeve.

Step 2

Measure wall thickness and cut zero clearance sleeve

parts to proper length (MAXIMUM 12” / 305 mm).

Assemble sleeve and attach to ﬁrestop with #8 sheet

metal screws (supplied). Install ﬁrestop assembly. (Fig.

33)

Zero clearance sleeve is only required for

combustible walls.

Step 3

Place ﬁreplace into position. Measure the vertical height

(X) required from the base of the ﬂue collars to the cen-

ter of the wall opening. (Fig. 34)

Step 4

Apply a band of silicone to the inner and outer ﬂue

collars of the ﬁreplace and using appropriate length of

pipe section(s) attach to ﬁreplace with three (3) screws.

Follow with the installation of the inner and outer elbow,

again secure joints with three (3) sheet metal screws.

Wipe off any excess high temperature sealant.

Step 5

Measure the horizontal length requirement including a

2” (51mm) overlap, i.e. from the elbow to the outside

wall face plus 2” (51mm) (or the distance required if

installing a second 90° elbow). (Fig. 35)

Always install horizontal venting on a level

plane.

Step 6

Use appropriate length of pipe sections - telescopic or

ﬁxed - and install. The sections which go through the

wall are packaged with the starter kit, and can be cut to

suit if necessary.

Sealing vent pipe and ﬁrestop gaps with high tem-

perature sealant will restrict cold air being drawn in

around ﬁreplace.

FP1181

Fig. 34 Vertical height requirements.

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Vermont Castings DV360 Operations Instructions Page 19

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